When someone starts working for themselves or for others, one of the most important questions is whether they are employed or self‑employed. This classification affects how tax and National Insurance are paid, how expenses are treated, and what liabilities and rights apply.
HMRC uses your employment status to decide:
How you pay tax
How National Insurance Contributions (NICs) are calculated
Whether you need to register for Self Assessment
How expenses and benefits are treated for tax purposes
Getting this classification wrong can lead to unexpected tax bills, penalties, and compliance issues.
You are likely to be employed if your working relationship has the following features:
You have a contract of employment
You work set hours and are controlled by the employer
You receive a regular wage or salary
PAYE (Pay As You Earn) tax is deducted by the employer
You receive benefits such as holiday pay, pension contributions, or sick pay
In these cases, tax and National Insurance are usually handled at source via the PAYE system.
You’re usually self‑employed if you:
Run your own business
Have multiple clients rather than a single employer
Are responsible for your own tax and NICs
Decide how, when, and where you work
Provide your own equipment and materials
Can hire others at your own cost
Self‑employed individuals complete a Self Assessment tax return and pay their own tax and Class 2 and Class 4 NICs.
For employed workers:
Income tax and Class 1 NICs are usually deducted through PAYE
Employers pay Class 1 NICs on earnings
For self‑employed individuals:
Income tax and NICs are calculated through Self Assessment
Class 2 and Class 4 NICs apply
Employees may claim tax relief on certain business expenses (e.g., travel, uniforms) but only in limited cases and with evidence.
Self‑employed taxpayers can deduct allowable business expenses directly from their profits before tax is calculated. This typically includes:
Office costs
Travel and subsistence
Professional fees
Business equipment
Understanding which expenses qualify is critical for minimising your tax bill legally.
HMRC looks at several factors when deciding employment status. There is no single test, but the key areas include:
Does the company decide what you do, how you do it, and when you work? High control points toward employed status.
Is the employer obliged to offer work, and are you obliged to accept it? This tends to indicate employment.
Do you bear financial risk and provide your own tools? If yes, that suggests self‑employment.
Are you integrated into the company’s organisation? Employees often are; contractors often are not.
Can you send someone else to do the work? A genuine substitution clause is a strong indicator of self‑employment.
No single factor decides status — the overall picture counts. HMRC looks at the actual working relationship, not just what a contract says.
For certain contractors working through personal service companies, the tax status rules known as IR35 can apply. These anti‑avoidance rules determine whether a contractor should be taxed as employed for certain contracts, even if operating through a company.
Applegrow can help assess whether IR35 applies based on the nature of your contracts and working practices.
Misclassifying your employment status can lead to:
Additional tax and NICs owed
Interest and penalties from HMRC
Backdated liabilities
Disruption to your business or personal finances
Professional assessment and documentation help protect your position.
Determining employment status can be complex, especially where contractual wording and real working practices differ. Applegrow Financial Advisors can help you:
Assess your working situation against HMRC guidelines
Review contracts and working relationships
Advise on PAYE, Self Assessment, and NIC obligations
Assist with compliance planning and record keeping
Support disputes or queries with HMRC
Getting your status right gives clarity, confidence, and compliance.
Contact Applegrow Financial Advisors today for expert guidance and personalised advice that reflects your unique circumstances.
